فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri - Paris Observatory

Two parameters, denoted A and B, that
describe the major features of our Galaxy's differential rotation in the Sun's neighbourhood.
A is one-half of the shear and equal to +14.4 ±
1.2 km s-1 kpc-1, and B, one-half of the vorticity,
equal to -12.0 ± 2.8 km s-1 pc-1.